The investment seeks to track the investment results of the Dow Jones U.S. Select Pharmaceuticals Index. The underlying index includes pharmaceutical companies such as manufacturers of prescription or over-the-counter drugs or vaccines. The fund generally will invest at least 80% of its assets in the component securities of its underlying index and may invest up to 20% of its assets in certain futures, options and swap contracts, cash and cash equivalents. The fund is non-diversified.